Thread waxing and guiding device



F. ASHWORTH.

THREAD WAXING AND'GUIDING DEVICE.

APPLICATION FILED F5518. 19w.

Patented Nov. 25, 1919.

2 SHEETS-SHEET I.

F. ASHWORHL THREAD WAXING AND eumme DEVICE. APPLICATION FILED FEB. B. 19H.

1,322,746. Patented Nov. 25, .1919.

2 SHEETS-SHEET 2- 1 FRED ASHWORTI-I; or BEVERLY, HAsSAcHUsETTs, ASSIGNOR, EY HEsNE ASSIGNMENTS,

To UNITED sHoE MACHINERY CORPORATION, or rATEESO EW JERSEY, A E- PORATION OF NEW'TJE RSEY.

THREAD WAXING'AND eU nINe DE ICE.

To all whom it may concern, 2 7

Be it known that I, FRED ASHWORTH"; a

citizen of the United. States, residing at Beverly; in the county of Essex'and State of Massachusetts have invented certaln new and useful Improvements in Thread JVaxing and Guiding Devices; and. I do hereby declarethe following. to be'a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the.

same.

This invention relates to thread waxing and guiding devices adapted to prepare thread for use in wax thread sewing Ina-- chines.

The primary object of the present invention is to provide improved thread waxing and guiding devices by which a threadlmay be properly waxed and the wax on. the

thread. held at the proper temperature'after the thread. leaves the waxing device.

1th this and other ObJBCllS in view, the inventlon consists 111 the nnproved'thread waxing and guiding deviceshereinafter described and partlcularly set forth in the claims.

The various features of the invention are illustrated in the accompanying drawings, in which Figurel is a view in side elevation partly in section of a bobbin winder and wax pot embodying the preferred formvofv theinvention; Fig. 2 is a plan view of the improved wax pot; Fig. 31s a detail view in side elevation of the wax pot heating member; Fig. 4 is a detail sectional view of the thread guiding devlce for the wax pot heating member; Fig. 5 is a detail sectional VlGW" taken on the line '5-5 of Fig. 1 illustrating the mounting of the bobbin wlnder thread truck upon its heating member; and- 12 by whichit'is attached to the machine frame, and having a horizontal portion 13 which acts as a cover for the wax pot. A

pair of ears '14: is formed at opposite sides of the cover 13, and between these ears is Specification of Letters Patent. PatentgdN v, 25, 1919; I Application filed February 8, 1917. seriarNo. 147 4.11; I

removably mounted a pai-rofthumb. screws 16 which are pivoted tothe'upper rim of the wax pot 18. The wax pot consists of a metal container enlarged at the top to form a spout 20fwhich projects beyond the edge of the cover 13 to. permit wax to be placed in the pot. 22 isa heating member provided with four radiatingwings extending from a central tubular portion 2a. 'Apair oflugs 26. (F ig.- 3) is formed on the lower face otthe cover 13 and complemental lugs 28 are formed on two ofthe radiating wings. of

the heating member ,22 and are attached; to the lugs 26' by means of screws 30. The

tubular portion-24 of the heating member extends. through the cover 13 and projects above its upper surface. an electrical ire-1 sistance heat ng unit 32 is receivedin the tubular portion and is connected with a pair of electrical conductors 34. The electrical conductors are inclosed in a conduit,-. whichhas a connector 36 on itslower end. which is adapted to fit over the tubular portion 24 wherejit may be clamped to lock the heating unit in the heatlng member.

The waxing device illustrated in the dr w-- ings is designed to wax the needle thread of a. sewing machine and also a bobbin thread. Each thread passes through a thread opening 38 in the cover 13 down along one sideof av wing of the heating member; through a thread passage 40 in the wing, up. along the opposite side of: the

wing, and out through a wax stripper4 2. Each thread passage-t0 consists ofza porce-x laineyel'et which *fits into a socket a l formed,

:90 tion by means of a -clamping plate 46 se-' cured to the bottom of the heating member.

at the bottom of'a wing-{and is held in posiby means of a screwdS. The wax-stripper 42 is the well-known form of stripper. which 1s shown and described in thepatent to Ashworth No. 1,0l'5;772',dated January 30, 1912. The stripper is threaded into thecover-plate of the support and locked in position by means of a'screw; 50;

Afterthe bobbin thread passes out through the waxstripper it runsovera thread truck 52 mounted upon the connect-orfidthat is attachedto the tubular portion 24. In the mechanism illustrated in the drawings the bobbin'thread is wound upon a bobbin 54- Which is secured by means of a thumb nut struction.

58 upon the windingshaft 56 of a bobbin winding mechanism of well known con- The winding shaft '56 is journaled in a bracket 60 and isprovided with a'pulley 62 driven in the usual manner from the driving pulley of the sewing machine. To keep) the waxed thread in propercon- V e wound on the bobbin, a heating? dition to member 68 is provided;v The heating member-"68 consists of'a metal tube in which is mounted an electrical resistance heating unit 7 connected to electrical conductors 72. The conductors 7 2 are. inclosed" in a conduit- "74 which has 'afconnector 7 6 at itslower end constructed to be'clampedover theflendof the heating member 68. The heating member tached to the frame 60 and which is provided is supported upon a bracket 78 which is atwithan upwardly projecting thimble 80 on which is clamped a sleeve 82 projecting from the side of the heating member 68 (see Fig. 6). The thi'mble 80'is directly-in line with the bobbin 5% and the thread passes through the thimble in going to'the bobbin, Below and; in line with thethimble 80' a downwardly projecting thimble 84; is formed on; the lower end of the heating member 68. A bracket 86' is adjustably mounted on the thimble 84 and carries a thread 'truck 88 which is arranged to guide the-thread along the axis of the thimble 84:, (Fig. 5). The

thread truck 88 is adjustable about the axis of the thread and may be set in 'any desired plane. By this construction the thread trucks 52 and 88 may-beadjusted on the tubular member 24 and thimble '84, fr'espectively, so that the threadwill be held in substantially one plane while it is passing from the thread stripper to the bobbin, The thread truck 52 is heated by the heating unit 32 and the thread truck 88 is heated by the heating unit 7 0 so that the wax will not be allowed to harden before it gets to the bobbin. Also, the heating member 68 acts to heat the thread as it passes through the thi'mbles 80 and 84, and keeps the thread hot until it reaches the bobbin 54. Heat is transmitted "through the bracket 78 to the frame '60 whichtends to heat the shaft 56 and thus heat the bobbin 5%. The adjustment'of the heating member68 upon the bracket 78 also allows it to'be place]. in pasition to get the greatest heat for the thread and be out of the Way of the bobbin winding. mechanism. The adjustment of the heating member, however, does not afiect the position of the thread truck 88.

The preferred form of the invention havfling been thus described, what is claimed is:

1. Thread waxing and guiding devices for ,sewingmachines having, in combination, a

ing said member.

. 6. Threadwaxing and gulding devices for support, Wax pot attached to the'support,

a wax heating member secured to the lower face of the support and projecting into the] V wax pot, said member having a tubular por-' tionprojecting above the upper surface of the support, an electrical heating device'in said tubular-portion, a thread guidingde vice and thread stripper on the support, and a thread guide mountedon said tubular por stripper;

tion of the heating member above the thread 2. Thread waxing and guiding devices for waX pot, a heating member 'roj ecting down- 'sewing'machines, having, in combination, a 7

wardlyinto the wax pot and providedwithj i a radiating wing, electrical heating de-- vice in said heating member, and means for gulding the thread downwardly through the pot on one side of said wing and upwardly through the pot on the opposite side of said wing.

a 3. Thread waxing and guiding devices for to the other. o 4. Thread waxing and guiding dev ces for sewing machines havlng, in combination,

wax pot, means. for guiding the thread".

through said pot, a guide for the thread after leaving the pot, a heating "member having a passage for thethread after leav ing said gulde, means for heating said mem-' ber, and a second thread guide on said member ad ustable about the axis of said passage. 5. Thread waxing and. guiding devices for sewing machines having, in combination, a i i wax pot, means for guiding the thread through said pot, a guide for the threadafter leaving the pot, a heating member having a passage for the thread after. leaving said pot, said member being adjustable about the axis of said passage, and means for'heat sewin machines havin zin combination a wax pot, means for guiding the'thread through said pot,'a. guide for'the thread 7 after leaving the pot, a heating member'hav-v ing a passage for the thread after. leaving said guide said. member being adjustable about the axis of the thread, a thread guide on saidmember adjustable about the axis of said passage, and means for heatlng said member.

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